Vulnerability · Published Aug 19, 2026 · Assigned by GitHub_M
CVE-2026-54493Koel: Authenticated Full-Read SSRF via Subsonic Internet Radio Stations
High 7.7
In plain English
A high-severity server-side request forgery in koel from koel. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Koel is a free, open-source music streaming solution. Prior to 9.7.0, the Subsonic-compatible createInternetRadioStation.view and updateInternetRadioStation.view routes accept an authenticated user's streamUrl without the SafeUrl and HasAudioContentType checks used by the regular radio API. app/Http/Requests/Subsonic/CreateInternetRadioStationRequest.php and app/Http/Requests/Subsonic/UpdateInternetRadioStationRequest.php pass the stored URL through app/Services/RadioService.php to app/Services/Radio/RadioStreamProxy.php, where RadioStreamProxy::openStream() calls fopen($url, 'r', false, $context). Streaming /radio/stream/{id} returns the upstream response body, allowing access to loopback, RFC1918, Docker bridge, metadata, or other internal HTTP services reachable from the Koel server. This issue is fixed in version 9.7.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | phanan/koel | 9.7.0 | GHSA-6p96-cfg5-4vhp |
Affected products (as reported)
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
References
- https://github.com/koel/koel/security/advisories/GHSA-6p96-cfg5-4vhp x_refsource_CONFIRM
- https://github.com/koel/koel/pull/2545 x_refsource_MISC
- https://github.com/koel/koel/commit/1331f335342b405e60ffabdd60f1f398508f996f x_refsource_MISC
- https://github.com/koel/koel/releases/tag/v9.7.0 x_refsource_MISC